// stylelint-disable selector-no-qualifying-type

//
// Base styles
//

.input-group {
   position: relative;
   display: flex;
   flex-wrap: wrap; // For form validation feedback
   align-items: stretch;
   width: 100%;

   > .form-control,
   > .form-control-plaintext,
   > .custom-select,
   > .custom-file {
      position: relative; // For focus state's z-index
      flex: 1 1 auto;
      // Add width 1% and flex-basis auto to ensure that button will not wrap out
      // the column. Applies to IE Edge+ and Firefox. Chrome does not require this.
      width: 1%;
      margin-bottom: 0;

      + .form-control,
      + .custom-select,
      + .custom-file {
         margin-left: -$input-border-width;
      }
   }

   // Bring the "active" form control to the top of surrounding elements
   > .form-control:focus,
   > .custom-select:focus,
   > .custom-file .custom-file-input:focus ~ .custom-file-label {
      z-index: 3;
   }

   // Bring the custom file input above the label
   > .custom-file .custom-file-input:focus {
      z-index: 4;
   }

   > .form-control,
   > .custom-select {
      &:not(:last-child) { @include border-right-radius(0); }
      &:not(:first-child) { @include border-left-radius(0); }
   }

   // Custom file inputs have more complex markup, thus requiring different
   // border-radius overrides.
   > .custom-file {
      display: flex;
      align-items: center;

      &:not(:last-child) .custom-file-label,
      &:not(:last-child) .custom-file-label::after { @include border-right-radius(0); }
      &:not(:first-child) .custom-file-label { @include border-left-radius(0); }
   }
}


// Prepend and append
//
// While it requires one extra layer of HTML for each, dedicated prepend and
// append elements allow us to 1) be less clever, 2) simplify our selectors, and
// 3) support HTML5 form validation.

.input-group-prepend,
.input-group-append {
   display: flex;

   // Ensure buttons are always above inputs for more visually pleasing borders.
   // This isn't needed for `.input-group-text` since it shares the same border-color
   // as our inputs.
   .btn {
      position: relative;
      z-index: 2;

      &:focus {
         z-index: 3;
      }
   }

   .btn + .btn,
   .btn + .input-group-text,
   .input-group-text + .input-group-text,
   .input-group-text + .btn {
      margin-left: -$input-border-width;
   }
}

.input-group-prepend { margin-right: -$input-border-width; }
.input-group-append { margin-left: -$input-border-width; }


// Textual addons
//
// Serves as a catch-all element for any text or radio/checkbox input you wish
// to prepend or append to an input.

.input-group-text {
   display: flex;
   align-items: center;
   padding: $input-padding-y $input-padding-x;
   margin-bottom: 0; // Allow use of <label> elements by overriding our default margin-bottom
   @include font-size($input-font-size); // Match inputs
   font-weight: $font-weight-normal;
   line-height: $input-line-height;
   color: $input-group-addon-color;
   text-align: center;
   white-space: nowrap;
   background-color: $input-group-addon-bg;
   border: $input-border-width solid $input-group-addon-border-color;
   @include border-radius($input-border-radius);

   // Nuke default margins from checkboxes and radios to vertically center within.
   input[type="radio"],
   input[type="checkbox"] {
      margin-top: 0;
   }
}


// Sizing
//
// Remix the default form control sizing classes into new ones for easier
// manipulation.

.input-group-lg > .form-control:not(textarea),
.input-group-lg > .custom-select {
   height: $input-height-lg;
}

.input-group-lg > .form-control,
.input-group-lg > .custom-select,
.input-group-lg > .input-group-prepend > .input-group-text,
.input-group-lg > .input-group-append > .input-group-text,
.input-group-lg > .input-group-prepend > .btn,
.input-group-lg > .input-group-append > .btn {
   padding: $input-padding-y-lg $input-padding-x-lg;
   @include font-size($input-font-size-lg);
   line-height: $input-line-height-lg;
   @include border-radius($input-border-radius-lg);
}

.input-group-sm > .form-control:not(textarea),
.input-group-sm > .custom-select {
   height: $input-height-sm;
}

.input-group-sm > .form-control,
.input-group-sm > .custom-select,
.input-group-sm > .input-group-prepend > .input-group-text,
.input-group-sm > .input-group-append > .input-group-text,
.input-group-sm > .input-group-prepend > .btn,
.input-group-sm > .input-group-append > .btn {
   padding: $input-padding-y-sm $input-padding-x-sm;
   @include font-size($input-font-size-sm);
   line-height: $input-line-height-sm;
   @include border-radius($input-border-radius-sm);
}

.input-group-lg > .custom-select,
.input-group-sm > .custom-select {
   padding-right: $custom-select-padding-x + $custom-select-indicator-padding;
}


// Prepend and append rounded corners
//
// These rulesets must come after the sizing ones to properly override sm and lg
// border-radius values when extending. They're more specific than we'd like
// with the `.input-group >` part, but without it, we cannot override the sizing.


.input-group > .input-group-prepend > .btn,
.input-group > .input-group-prepend > .input-group-text,
.input-group > .input-group-append:not(:last-child) > .btn,
.input-group > .input-group-append:not(:last-child) > .input-group-text,
.input-group > .input-group-append:last-child > .btn:not(:last-child):not(.dropdown-toggle),
.input-group > .input-group-append:last-child > .input-group-text:not(:last-child) {
   @include border-right-radius(0);
}

.input-group > .input-group-append > .btn,
.input-group > .input-group-append > .input-group-text,
.input-group > .input-group-prepend:not(:first-child) > .btn,
.input-group > .input-group-prepend:not(:first-child) > .input-group-text,
.input-group > .input-group-prepend:first-child > .btn:not(:first-child),
.input-group > .input-group-prepend:first-child > .input-group-text:not(:first-child) {
   @include border-left-radius(0);
}
